Electron Diffraction

Question 1

How do electrons behave in a partial vacuum?

Answer 1

Cathode heats up - electron gain energy - get excited - attract to the top and bottom of the anode - travel through the middle - a dot forms on the partial vacuum.

Question 2

How does graphite affect the electrons?

Answer 2

A piece of graphite causes the electrons to diffract - electrons act like a wave- must have a wavelength.

Question 3

What is wave-particle duality?

Answer 3

When matter acts like both a wave and a particle in different circumstances

Question 4

How does the Fluorescent screen work?

Answer 4

The electrons hit the screen, giving it energy - excites the atoms - when they de-excite they emit visible photons. When the voltage (electrons) is turned off, the glow stops.